Fasel Inductors...opinions?

[Paul Perry (Frostwave)]

I doubt a fridge magnet would work, at least not the flat card type, the magnetic field in these is in the form of narrow stripes. You would need a rectangular chunk, or a disc magnet. Those rare earth ones would be good, but be careful, you can get a bad pinch from them!

[Paul Marossy]

If a fridge magnet doesn't work, I have a variety of other types of magnets to try...

I'll try to do some testing on this tonight, more likely on Wed. evening.

[Manolo Dudes]

I doubt a fridge magnet would work, at least not the flat card type, the magnetic field in these is in the form of narrow stripes. You would need a rectangular chunk, or a disc magnet. Those rare earth ones would be good, but be careful, you can get a bad pinch from them!

I've tried with ceramics, alnicos and neodymiums and nothing seems to work better than the flat card fridge variety. I've assumed that less magnetic power is the key but I must admit that it's not very scientific  

The more powerful the magnet, the harsher the sound.

And yes... be very careful with those neodymiums!  :wink:

P.S. Again: remember to flip it upside down if you don't like it on the first try... I've experimented that magnetic polarity does matter.

[Peter Snowberg]

I have a piece of magnetic viewing film and upholding it up to a fridge magnet, you quickly see that the field is arranged in stripes about 1/8 inch wide (as Paul writes). Each stripe has a North and South pole. Flipping these magnets upside down will not reverse the polarity.

Take care,
-Peter

[Manolo Dudes]

You may be right but I've experienced the polarity effect... honest! :roll:

[petemoore]

My 847's inductor is kind of like a bolt top [rugged convex shape] looking affair, not flat on top at all. I couldn't seem to discern any difference with a fridge magnet.
 Are there other considerations about having magnets around metal board parts? I know when exposed to a magnetic field that it's transferred to other metals within proximity. not copper of course...what about magnets and tubes...anybody wave magnets around tubes and find a result...ever fishing for the newly discovered parameter..

[Paul Marossy]

With those fridge magnets, you can use two or three layers if necessary. I'm wondering what affect those 1/8" wide strips would have on the inductor... it seems like it would create some sort of hash pattern. Who knows how that would affect things?!

[Manolo Dudes]

Yes... you can try some layers of fridge magnets.

I suppose that by those 1/8" strips you mean those flexible magnets used to keep the fridge doors closed.. right? I've also tried them but the wah become harsh.

Those fridges seem to be quite useful for DIY wahs  :lol:

I'm think that you may be perfectly right and the "polarity" issue could be really a matter of "horizontal orientation". Just what I believed to be a matter of change in polarity by flipping the maget upside down, could be perfectly a mere change in horizontal orientation too. I'll investigate it.

[Paul Marossy]

" suppose that by those 1/8" strips you mean those flexible magnets used to keep the fridge doors closed.. right?"

Actually I'm talking about this stuff you can buy in the store in a sheet. It is self-adhesive and you can cut with scissors to any size you like. This is made for placing things like paper onto the front/side of a refrigerator.

"I'm think that you may be perfectly right and the "polarity" issue could be really a matter of "horizontal orientation". Just what I believed to be a matter of change in polarity by flipping the maget upside down, could be perfectly a mere change in horizontal orientation too. I'll investigate it."

It could be that when flipped it, you also rotated it, which could possibly have some kind of effect on the sound.